Ampeg SVT-150H manual Rear Panel, Not Defeat the Ground Prong of the AC Plug

SVT-150H

The Front Panel Controls and Their Use

7.ULTRA-MEDIANOS:Este es el control primor- dial para el rango de las frecuencias medianas. Gire el control del centro hacia la izquierda para lograr un sonido de contorno (más distante, menor salida en el rango mediano) ó del centro hacia la derecha para obtener un sonido realmente penetrante.

8.AGUDOS: Esta perilla sirve como el control pri- mordial para las frecuencias altas. Esto permite un rango de 17 dB de refuerzo ó 22dB de recorte a 5kHz.

9.EQ EN LED: Este LED indicador se ilumina cuando usted activa el EQ mediante el control Maestro (#11) del panel delantero ó el interruptor de pie (#23) del panel posterior.

10.EQ GRAFICO: Estos controles deslizantes (cursores) le permiten ajustar la salida de las fre- cuencias que se muestran junto a cada control. La posición central de cada control es plana (sin refuerzo ni recorte). Estos controles sólo afectan el sonido cuando el EQ esé prendido.

11.MAESTRO: Fije mediante este control el nivel general de salida del amplificador. El Circuito de Efectos y la Salida Equilibrada (#18, 19, 22) no se verán afectadas por el control Maestro. Jalando el control Maestro se prende el EQ Gráfico (#10). Cuando se utiliza el interruptor de pie, se pasa por alto el interruptor del panel delantero.

12.DIODO LED DE LIMITE: Este LED indicador parpadeará cada vez que se requiera el circuito lim- itador interno para conservar limpia la señal de sal- ida del amplificador. Esto indica que el amplificador está aproximándose a su salida máxima y que el limitador está impidiendo el aplanamiento (“clip- ping”) de la señal de salida.

13.DIODO LED DE POTENCIA ENCENDIDA: Este LED indicador se ilumina cuando se prende el interruptor de POTENCIA (#14).

14.INTERRUPTOR DE POTENCIA: Este interrup- tor de servicio pesado tipo vaivén aplica la energía de CA al amplificador: el amplificador se PRENDE en la posición hacia arriba, y se APAGA en la posi- ción hacia abajo

The Rear Panel

					Made in the U.S.A. by SLM ELECTRONICS
					1400 Ferguson Avenue • St. Louis, MO 63133
15	16	17	18	19	20	21	22	23

15.FUSE: This protects the unit from dam- age due to overload conditions or power line surges. If the fuse blows, replace it only with the same size and type.

16.AC LINE IN: Firmly plug the supplied AC power cord into this socket, pushing it in until it is fully seated. Plug the male end of the cord into a grounded AC outlet. DO

NOT DEFEAT THE GROUND PRONG OF THE AC PLUG!

17.SPEAKER OUTPUT(S): The SVT- 150H has two 1/4” speaker output jacks which you will use to connect to your bass cabinet(s). Use speaker cables with 1/4” plugs to connect the SPEAKER jack(s) to the cabinet(s). Observe the 4 ohm minimum impedance rating. Please see the note concerning the speaker output jacks on the facing page.

The following chart shows the total impedance load when connecting speaker cabinets in parallel:

Cabinet	# of	Total
Impedance	Cabs	Impedance
8Ω	2	4Ω
16Ω	2	8Ω
16Ω	4	4Ω

18.EFFECTS RETURN: To use an external effects device or other signal processor, connect the OUTPUT of the device to this jack using a shielded cable. This feeds the processed signal into the amplifier’s master section.

19.EFFECTS SEND: Connect the output from this jack to the INPUT of an external effects device using a shielded cable. This sends a post-EQ signal to your effects. Since plugging a cable in here does not break the through connection to the power amp, this can be used as another line out.

20.PRE/POST SWITCH: You can select either pre or post-EQ for the signal at the Balanced Out jack (#22) with this switch. With the switch in the OUT position, the sig- nal at the jacks will be pre-EQ. This is a direct output which is not affected by any EQ or boost settings. With the switch in, the signal is post-EQ and is controlled and modified by the tone controls, Graphic EQ and Effects Loop.

21.-20dB SWITCH: This switch adjusts the output level at the Balanced Out jack (#22). The switch works independently from the front panel Master control. Pushing the switch in activates the -20dB pad, allowing patching into microphone inputs on a mixer without overdriving them.

22.BALANCED OUT: This XLR-type con- nection supplies a balanced preamp output signal for connecting to a house mixing board, recording console or external ampli- fiers with balanced inputs. The signal can be set to pre or post-EQ by the Pre/Post switch (#20). The level can be adjusted for either mic or line type inputs using the -20dB switch (#21).

23.FOOTSWITCH: This jack accepts the 1/4” plug from a 1-button footswitch, allow- ing remote control of the Graphic EQ on/off function. When a footswitch is used, the front panel Master Pull EQ On switch (#11) is bypassed.

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